<template>
  <div class="component-upload-video">
    <el-upload
      drag
      multiple
      :action="uploadImgUrl"
      :on-success="handleUploadSuccess"
      :before-upload="handleBeforeUpload"
      :limit="limit"
      :on-error="handleUploadError"
      :on-exceed="handleExceed"
      :on-progress="handleProgress"
      :before-remove="handleDelete"
      ref="imageUpload"
      :headers="headers"
      :file-list="videoList"
      :data="{ type: uploadType }"
      :class="{ hide: videoList.length >= limit }"
    >
      <el-icon class="el-icon--upload"><upload-filled /></el-icon>
      <div class="el-upload__text"> 上传视频 </div>
      <template #tip>
        <div class="el-upload__tip" v-if="showTip">
          请上传
          <!-- <template v-if="fileSize">
            大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b>
          </template> -->
          <template v-if="fileType">
            格式为 <b style="color: #f56c6c">{{ fileType.join('/') }}</b>
          </template>
          的文件
        </div>
      </template>
    </el-upload>
    <div class="video-box">
      <video
        v-for="(item, index) in videoList"
        :key="index"
        :src="item.url"
        width="260"
        preload
        :autoplay="false"
        controls
        style="margin-left: 8px"
      ></video>
    </div>
  </div>
</template>

<script setup>
import { delGoodsImgDetail } from '@/api/meal/goods'
import { getToken } from '@/utils/auth'

const props = defineProps({
  modelValue: [String, Object, Array],
  // 图片数量限制
  limit: {
    type: Number,
    default: 5
  },
  // 大小限制(MB)
  // fileSize: {
  //   type: Number,
  //   default: 50000000
  // },
  // 文件类型
  fileType: {
    type: Array,
    default: () => ['mov', 'ogg', 'mp4', 'mkv']
  },
  // 是否显示提示
  isShowTip: {
    type: Boolean,
    default: true
  },
  //上传类型  1-图片，2-视频,3-apk
  uploadType: {
    type: String,
    default: '2'
  },
  //模块
  modelType: {
    type: String,
    default: ''
  }
})

const { proxy } = getCurrentInstance()
const emit = defineEmits(['update:modelValue'])
const number = ref(0)
const uploadList = ref([])
const { VITE_APP_BASE_API: baseUrl, VITE_GLOB_UPLOAD_BYTYPE_URL } = import.meta.env
const uploadImgUrl = ref(`${baseUrl}${VITE_GLOB_UPLOAD_BYTYPE_URL}`) // 上传的图片服务器地址(根据类型上传)
const headers = ref({ Authorization: 'Bearer ' + getToken() })
const videoList = ref([])
const showTip = computed(() => props.isShowTip && (props.fileType || props.fileSize))

watch(
  () => props.modelValue,
  (val) => {
    if (val) {
      // 首先将值转为数组
      const list = Array.isArray(val) ? val : props.modelValue.split(',')
      // 然后将数组转为对象数组
      videoList.value = list.map((item) => {
        if (typeof item === 'string') {
          item = { name: item.name ? item.name : item, url: item, id: item.id }
        }
        return item
      })
    } else {
      videoList.value = []
      return []
    }
  },
  { deep: true, immediate: true }
)

// 上传前loading加载
function handleBeforeUpload(file) {
  let isImg = false
  if (props.fileType.length) {
    let fileExtension = ''
    if (file.name.lastIndexOf('.') > -1) {
      fileExtension = file.name.slice(file.name.lastIndexOf('.') + 1)
    }
    isImg = props.fileType.some((type) => {
      if (file.type.indexOf(type) > -1) return true
      if (fileExtension && fileExtension.indexOf(type) > -1) return true
      return false
    })
  } else {
    isImg = file.type.indexOf('image') > -1
  }
  if (!isImg) {
    proxy.$modal.msgError(`文件格式不正确, 请上传${props.fileType.join('/')}图片格式文件!`)
    return false
  }
  // if (props.fileSize) {
  //   const isLt = file.size / 1024 / 1024 < props.fileSize
  //   if (!isLt) {
  //     proxy.$modal.msgError(`上传视频大小不能超过 ${props.fileSize} MB!`)
  //     return false
  //   }
  // }
  proxy.$modal.loading('正在上传视频，请稍候...')
  number.value++
}

// 文件个数超出
function handleExceed() {
  proxy.$modal.msgError(`上传文件数量不能超过 ${props.limit} 个!`)
}

// 获取视频时长
function getVideoTime(file, callback) {
  var url = URL.createObjectURL(file.raw)
  var audioElement = new Audio(url)
  audioElement.addEventListener('loadedmetadata', function () {
    callback(parseInt(audioElement.duration))
  })
}

function handleProgress(event) {
  event.percent = 80
}

// 上传成功回调
function handleUploadSuccess(res, file) {
  getVideoTime(file, (val) => {
    if (res.code === 200) {
      uploadList.value.push({
        name: res.data.name,
        url: res.data.url,
        resourceId: res.data.resourceId,
        resourceType: res.data.resourceType,
        duration: val
      })
      uploadedSuccessfully()
    } else {
      number.value--
      proxy.$modal.closeLoading()
      proxy.$modal.msgError(res.msg)
      proxy.$refs.imageUpload.handleRemove(file)
      uploadedSuccessfully()
    }
  })
}

// 删除视频
const delId = ref(null)
function handleDelete(file) {
  const findex = videoList.value.map((f) => f.id).indexOf(file.id)
  if (findex > -1 && uploadList.value.length === number.value) {
    if (props.modelType && props.modelType === 'goods') {
      delId.value = videoList.value[findex].id
      delGoodsImgDetail(delId.value).then((res) => {
        videoList.value.splice(findex, 1)
        emit('update:modelValue', videoList.value)
      })
    } else {
      videoList.value.splice(findex, 1)
      emit('update:modelValue', videoList.value)
    }

    return false
  }
}

// 上传结束处理
function uploadedSuccessfully() {
  if (number.value > 0 && uploadList.value.length === number.value) {
    videoList.value = videoList.value.filter((f) => f.url !== undefined).concat(uploadList.value)
    uploadList.value = []
    number.value = 0
    // emit('update:modelValue', listToString(videoList.value))
    emit('update:modelValue', videoList.value)
    proxy.$modal.closeLoading()
  }
}
// 上传失败
function handleUploadError() {
  proxy.$modal.msgError('上传视频失败')
  proxy.$modal.closeLoading()
}

// 对象转成指定字符串分隔
function listToString(list, separator) {
  let strs = ''
  separator = separator || ','
  for (let i in list) {
    if (undefined !== list[i].url && list[i].url.indexOf('blob:') !== 0) {
      strs += list[i].url.replace(baseUrl, '') + separator
    }
  }
  return strs != '' ? strs.substr(0, strs.length - 1) : ''
}
</script>

<style scoped lang="scss">
// .el-upload--picture-card 控制加号部分
:deep(.hide .el-upload.is-drag) {
  display: none;
}
:deep(.hide .el-upload__tip) {
  display: none;
}
// :deep(.hide .el-upload-list){
//   display: none;
// }
</style>
